Northeastern is a big school and there are people from all walks of life.

For somebody who is a 'very liberal artsish person', you don't sound all that open minded. Give people a chance before you judge them. Every large school does seem to have that stereotypical normal student type (white, upper middle class, bro/preppy deush bags), but that doesn't mean that everyone is that way. Join clubs for the things you are interested in, and talk to people in your classes- there are many interested people here. Hopefully you can meet some of them who share similar interests and meet your standards.

Also, I've always thought that small liberal arts schools are more akin to high school than large schools. Anyways, Good luck.

TL;DR: The student body is very diverse and I've made some great friends here.

No matter where you go to school, your experience is only going to be worth what you put into it. If you like to do certain things then join the clubs that do those things. If you want to meet cool people then keep introducing yourself until you find people that interest you. One thing you probably shouldn't do, though, is assume that people are going to be a certain way and write them off as being "too normal" because everyone will surprise you with their quirks and idiosyncrasies. My best advice: always keep an open mind because people are fucking crazy no matter how normal they may seem. Just relax and have a good time. Leave your judgements at the door and I promise you'll have fun.

Short answer: no. It's a college, and it is what you make it. There are people like you describe here. Are there tons of them? No, and you'll have to go out of your way to meet them. But there is the possibility of fun here.